/* Copyright (c) 2010 Vladimir Chalupecky
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef __MESH_MACROS_H_INCLUDED__
#define __MESH_MACROS_H_INCLUDED__ 

#include <glib.h>

/** \file
 * \brief Various useful macros
 *
 * \author Vladimir Chalupecky
 */

/** Converts degrees to radians */
#define RADIANS(degrees) (degrees*G_PI/180.0)

/** Converts radians to degrees */
#define DEGREES(radians) (radians*180.0/G_PI)

#define SQRT3 1.7320508075688772

/** Scalar product of two 2D vectors represented as pointers to doubles
 *
 * \param v1 first vector
 * \param v2 second vector
 *
 * \return value of the scalar product
 */
#define SCALAR_PRODUCT(v1,v2) ((v1)[0]*(v2)[0]+(v1)[1]*(v2)[1])

#endif /* __MESH_MACROS_H_INCLUDED__ */
